A passive measurement tool for monitoring wireless packet network performances

Continuous monitoring of performances becomes necessary to detect critical situations in the radio interface of digital wireless telephone networks. This paper presents a measurement tool that analyzes TCP-level packet traffic and detects the effects of variations in the radio channel conditions of a mobile network. The analysis algorithm considers the energies of wavelet coefficients of the aggregated traffic process at a suitably selected number of time scales. Wavelet energy variations are detected by a statistical test from which a score is calculated. This indicator reveals changes in the performances of the monitored network

Passive measurement tool for monitoring mobile packet network performances

Continuous monitoring of performances is necessary to detect critical situations in the radio interface of digital mobile telephone networks. This paper presents a measurement tool that analyzes Transmission Control-Protocol (TCP) level packet traffic and detects the effects of variations in the radio-channel conditions of a wireless network. The analysis algorithm considers the wavelet coefficients of the aggregated-traffic process at a suitably selected number of time scales. Variations in the energy of wavelet coefficients are detected by a statistical test, from which a score is calculated. This indicator reveals changes in the performances of the monitored network

Statistical analysis of measurements for telecommunication-network troubleshooting

This paper presents a method for assessing network failures by means of a suitable statistical post-processing analysis of measurement data collected by nonintrusive devices. The proposed solution can be easily implemented by already available monitoring instruments for network performance surveillance and automatic detection of anomalies. The effectiveness of the method has been proven on real-life telecommunication systems, and results are reported